include/linux/dsa/8021q.h

   1 /* SPDX-License-Identifier: GPL-2.0
   2  * Copyright (c) 2019, Vladimir Oltean <[email protected]>
   3  */
   4
   5 #ifndef _NET_DSA_8021Q_H
   6 #define _NET_DSA_8021Q_H
   7
   8 #include <net/dsa.h>
   9 #include <linux/types.h>
  10
  11 /* VBID is limited to three bits only and zero is reserved.
  12  * Only 7 bridges can be enumerated.
  13  */
  14 #define DSA_TAG_8021Q_MAX_NUM_BRIDGES   7
  15
  16 int dsa_tag_8021q_register(struct dsa_switch *ds, __be16 proto);
  17
  18 void dsa_tag_8021q_unregister(struct dsa_switch *ds);
  19
  20 int dsa_tag_8021q_bridge_join(struct dsa_switch *ds, int port,
  21                               struct dsa_bridge bridge, bool *tx_fwd_offload,
  22                               struct netlink_ext_ack *extack);
  23
  24 void dsa_tag_8021q_bridge_leave(struct dsa_switch *ds, int port,
  25                                 struct dsa_bridge bridge);
  26
  27 u16 dsa_tag_8021q_bridge_vid(unsigned int bridge_num);
  28
  29 u16 dsa_tag_8021q_standalone_vid(const struct dsa_port *dp);
  30
  31 int dsa_8021q_rx_switch_id(u16 vid);
  32
  33 int dsa_8021q_rx_source_port(u16 vid);
  34
  35 bool vid_is_dsa_8021q(u16 vid);
  36
  37 #endif /* _NET_DSA_8021Q_H */